Tough-1 Magnetic Hock Boots Increases blood flow while reducing inflammation and soreness! A comfortably fitting boot that helps to treat inflammation, arthritis, bog spavins and other hock issues. Not for use during exercise and should only be used for short intervals. Start with only 15-20 minutes and gradually increase time. Not for use for longer than 8 hours. 6 unipolar magnets placed between the layers in each boot for maximum effectiveness. The unipolar magnets measure 1100 GAUSS which is low to medium penetration. Adjusts to fit with three "quick grip" closures. Sold in pairs. Specifications: Measurements: 11" H x 12" W